20347650

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{103}}^1\times {\mathrm{439}}^1$

素因数の和:560

約数の個数: 72

約数和(自身を含む): 55323840

約数和(自身を除く): 34976190

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 75, 90, 103, 150, 206, 225, 309, 439, 450, 515, 618, 878, 927, 1030, 1317, 1545, 1854, 2195, 2575, 2634, 3090, 3951, 4390, 4635, 5150, 6585, 7725, 7902, 9270, 10975, 13170, 15450, 19755, 21950, 23175, 32925, 39510, 45217, 46350, 65850, 90434, 98775, 135651, 197550, 226085, 271302, 406953, 452170, 678255, 813906, 1130425, 1356510, 2034765, 2260850, 3391275, 4069530, 6782550, 10173825, 20347650]

約数ペア:

[(1, 20347650), (2, 10173825), (3, 6782550), (5, 4069530), (6, 3391275), (9, 2260850), (10, 2034765), (15, 1356510), (18, 1130425), (25, 813906), (30, 678255), (45, 452170), (50, 406953), (75, 271302), (90, 226085), (103, 197550), (150, 135651), (206, 98775), (225, 90434), (309, 65850), (439, 46350), (450, 45217), (515, 39510), (618, 32925), (878, 23175), (927, 21950), (1030, 19755), (1317, 15450), (1545, 13170), (1854, 10975), (2195, 9270), (2575, 7902), (2634, 7725), (3090, 6585), (3951, 5150), (4390, 4635)]